tunic

tunic (tu´nik)

Coat or covering; one of the enveloping layers of a part, especially one of the coats of a blood vessel or other tubular structure.tunica [NA]; [L. tunica]
Bichat's t. the tunica intima of the blood vessels.
Brücke's t. tunica nervea
fibrous t. of corpus spongiosum tunica albuginea of corpus spongiosum
fibrous t. of eye the outer layer of the eyeball composed of the sclera and cornea.tunica fibrosa bulbi [NA], tunica externa oculi;
mucosal t.'s , mucous t.'s mucosa
muscular t.'s See muscular coat.
muscular t. of gallbladder muscular t. of the gallbladder, consisting of layers of smooth muscle fibers coursing in various directions immediately external to the mucosa of the gallbladder.
nervous t. of eyeball retina
serous t. serosa
vascular t. of eye the vascular, pigmentary, or middle coat of the eye, comprising the choroid, ciliary body, and iris.tunica vasculosa bulbi [NA], Haller's tunica vasculosa, tunica vasculosa oculi, uvea, uveal tract;

 

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